EP0560190B1 - Bindemittel für die Elektrotauchlackierung - Google Patents
Bindemittel für die Elektrotauchlackierung Download PDFInfo
- Publication number
- EP0560190B1 EP0560190B1 EP93103367A EP93103367A EP0560190B1 EP 0560190 B1 EP0560190 B1 EP 0560190B1 EP 93103367 A EP93103367 A EP 93103367A EP 93103367 A EP93103367 A EP 93103367A EP 0560190 B1 EP0560190 B1 EP 0560190B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- dispersion
- groups
- electrocoating
- acid
- resins
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6415—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63 having nitrogen
- C08G18/643—Reaction products of epoxy resins with at least equivalent amounts of amines
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
- C08G18/0809—Manufacture of polymers containing ionic or ionogenic groups containing cationic or cationogenic groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/16—Catalysts
- C08G18/22—Catalysts containing metal compounds
- C08G18/222—Catalysts containing metal compounds metal compounds not provided for in groups C08G18/225 - C08G18/26
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/80—Masked polyisocyanates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
- C09D5/443—Polyepoxides
- C09D5/4457—Polyepoxides containing special additives, e.g. pigments, polymeric particles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
- C09D5/4488—Cathodic paints
- C09D5/4492—Cathodic paints containing special additives, e.g. grinding agents
Definitions
- the invention further relates to aqueous dispersions which contain such binder systems, and the use of dispersions for electrocoating.
- the blocked isocyanate groups are caused by the reaction of epoxy resins with blocked polyisocyanates, the mercapto or carboxyl groups included, introduced into the resins. It is therefore self-networking Systems. It is only through this measure that it is possible according to EP-A-0 462 496 To compensate for the loss of corrosion protection caused by the omission of lead. The cause depends on the way in which blocked isocyanate groups in the Resins introduced become: Instead of the blocked polyisocyanates containing mercapto or carboxyl groups used partially blocked, the corrosion protection is significantly poorer.
- EP-A-0 462 496 shows, as a comparison, an electrodeposition paint which is cross-linking i.e., it contains the crosslinker component as a separate connection, where blocked polyisocyanates are used.
- the corrosion protection effect untreated steel sheet is bad, which underpins that only the Grant self-crosslinking systems corrosion protection on all common substrates.
- the crosslinking reactions of the electrocoating materials of EP-A-0 462 496 are carried out by Catalyzed tin compounds.
- EP-A-0 102 566 externally crosslinking electro-dipping paints are known, which the correspond to those of the comparison of EP-A-0 462 496. They provide coatings that are completely satisfactory in terms of their stability to acetone. In the EP-A-0 102 566 also proposes salts or complexes of iron, of lead, zinc, tin or manganese to be used, only in the examples Tin is used.
- Catalyst solutions for polyurethane formation that contain an iron (III) compound, an aromatic carbonyl or Hydroxy compound, a polyol and optionally an imidazole or contain benzimidazole are from the DE-A 39 38 203 known.
- the invention lay new binder systems, especially for electrodeposition, as a task that also without lead or only with small amounts of lead coatings provide good corrosion protection and good elasticity and that enable rapid hardening.
- dispersions containing these binder systems included, found and their use for cathodic Electrocoating, still a process for Electrocoating using the dispersions and Objects coated using this method.
- Binder systems especially for electrocoating described advantageous embodiments are those for the application of the invention Binder systems especially for electrocoating described advantageous embodiments.
- the base resins suitable as component A are such Resins, the cationic quaternary groups or primary and / or secondary amino groups and optionally hydroxyl or Thiol groups wear.
- cationic quaternary groups are e.g. Sulfonium, ammonium or phosphonium groups too name that for a dispersibility of the resins in water to care.
- Primary or secondary serve the same purpose Amino groups after protonation with an acid. Resins with primary and / or secondary amino groups are particularly preferred.
- All base resins preferably have an average molecular weight from 200 to 20,000, particularly preferably from 200 to 5000.
- the total number of cationic quaternaries or with Acid protonatable groups are preferably on average 2 to 20, particularly preferably 2 to 15 per molecule A.
- the number of hydroxyl and thiol groups is preferably on average 2 to 40, particularly preferably 2 to 15.
- Primary resins which are suitable for component A are: Polymers of the type of polyurethanes and epoxy resins.
- Polyurethanes (a 1 ) made from aliphatic and / or aromatic diisocyanates and aliphatic diols or polyols have proven to be suitable base resins if they have the groups required for water dispersion.
- Primary or secondary amino groups can be introduced into the polymer by reacting the isocyanates with terminating multifunctional amines. These amines can have primary and secondary amine functions such as diethylene triamine, triethylene tetramine and polyether diamines with terminal amino groups. They can also carry primary and tertiary amine functions such as dimethylaminopropylamine and diethylaminopropylamine.
- diisocyanates especially tetramethylene diisocyanate, Hexamethylene diisocyanate, isophorone diisocyanate, diphenylmethane diisocyanate, Tolylene diisocyanate, naphthylene diisocyanate and 4,4'-diphenyl ether diisocyanate.
- diols are ethylene glycol, diethylene glycol, Triethylene glycol, propanediol, butanediol, hexanediol, Neopentyl glycol or hydroxypivalic acid neopentyl glycol ester in question.
- higher-quality alcohols also come considered such as trimethylolpropane, glycerol, pentaerythritol and trimethylolbenzene.
- Particularly preferred base resins are those whose base structures are based on epoxy resins (a 2 ).
- Epoxy resins can be used by reaction polyhydric phenols available with an epihalohydrin are.
- the molecular weight can be determined by the molar ratio of the output connections are controlled.
- examples for such polyhydric phenols are resorcinol, hydroquinone, 2,2-di- (4-hydroxyphenyl) propane (bisphenol A), p, p'-dihydroxybenzophenone, p, p'-dihydroxydiphenyl, 1,1-di (4-hydroxyphenyl) ethane, Bis (2-hydroxynaphthyl) methane, 1,5-dihydroxynaphthylene and novolaks.
- Bisphenol A is preferably used.
- the preferred epihalohydrin is epichlorohydrin.
- Epoxy resins from polyhydric phenols and epihalohydrin can polyglycidyl ethers of polyhydric aliphatic alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,2,6-hexanetriol, glycerin or bis- (4-hydroxycyclohexyl) -2,2-propane can be used.
- polyhydric aliphatic alcohols such as ethylene glycol, diethylene glycol, triethylene glycol, 1,2-propylene glycol, 1,3-propylene glycol, 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, 1,2,6-hexanetriol, glycerin or bis- (4-hydroxycyclohexyl) -2,
- Epoxy resins which are particularly preferred are those which pass through Implementation of diglycidyl ethers of bisphenol A with polyvalent Phenols, especially bisphenol A, or by reaction with long chain alkylphenols such as 4-nonylphenol or Monoether glycols such as 2-phenoxypropanol-1 are available. Such reactions can be catalyzed by amines such as dibenzylamine become.
- epoxy resins which still carry epoxy groups, with an amine or Mixtures of different amines implemented.
- Amines include alkylamines, alkylalkanolamines, polyoxyalkylene polyamines and polyvalent polyolefins.
- As a base resin products that can be produced by the reaction of an epoxy resin obtained with an excess of primary alkyl diamines are whose alkyl radical has 2 to 20 carbon atoms Has.
- the diprimary alkyl diamines are especially ethylenediamine, 1,2- and 1,3-diaminopropane, 1,4-diaminobutane, neopentanediamine and hexamethylenediamine.
- Suitable secondary Dialkylmonoamines are those whose alkyl radicals are 1 to Contain 20 carbon atoms, with dimethylamine and diethylamine to be favoured.
- Alkylalkanolamines are also suitable, whose alkyl and alkanol residues each 1 to Can contain 20 carbon atoms, the chain length the radicals can be the same or different from one another.
- Alkylalkanolamines are e.g. Ethylethanolamine, methylisopropanolamine and especially to mention methylethanolamine.
- the polyoxyalkylene polyamines, that can be used are for example polyoxyethylene polyamine, polyoxypropylene polyamine and polyoxybutylene polyamine.
- To the group of polyolefin polyamines include amine-terminated butadiene-acrylonitrile copolymers with an average molecular weight of 200 to 5000.
- the amine-modified epoxy resins chain extended with dicarboxylic acids, e.g. With Sebacic acid or a dimeric fatty acid.
- dicarboxylic acids e.g. with Sebacic acid or a dimeric fatty acid.
- a joint use of monocarboxylic acids such as a fatty acid is also possible.
- amine components can be introduced into the epoxy resins by reaction with a so-called amidamine, ie condensation products of dicarboxylic acids, preferably dimer fatty acids, and polyamines, preferably aliphatic polyamines, such as, for example, diethylene triamine or triethylene tetramine.
- Terminating monocarboxylic acids preferably C 12 -C 20 carboxylic acids, can also be brewed into the amidamine. Products whose amine number is between 200 and 500 mg / g are particularly suitable.
- the amine-modified epoxy resins can, if desired mixed with 0 to 20 wt .-% polyester. These polyesters have an average molecular weight from 200 to 20,000, preferably from 200 to 5,000 are polycondensation products from dicarboxylic acids and polyhydric alcohols.
- Compounds such as maleic acid come as the carboxylic acid component, Succinic acid, glutaric acid, adipic acid, pimelic acid, Suberic acid, azelaic acid, sebacic acid, cyclohexanedicarboxylic acid, Phthalic acid, isophthalic acid and terephthalic acid as well as functional derivatives of these acids.
- Alcohol components are aliphatic diols such as ethylene glycol, Diethylene glycol, triethylene glycol, propanediol, butanediol, Hexanediol, neopentyl glycol and hydroxypivalic acid neopentyl glycol ester to name as well as higher alcohols such as trimethylolpropane, glycerol, erythritol, pentaerythritol, Trimethylolbenzene and tris (hydroxyethyl) isocyanurate.
- aliphatic diols such as ethylene glycol, Diethylene glycol, triethylene glycol, propanediol, butanediol, Hexanediol, neopentyl glycol and hydroxypivalic acid neopentyl glycol ester to name as well as higher alcohols such as trimethylolpropane, glycerol, erythritol, pent
- Hydroxyl or thiol groups can by reaction of alcohols or thiols with epoxy groups introduced into the resins become.
- the binder systems according to the invention contain as component B. a crosslinker, preferably in one Amount of 5 to 50 wt .-%, particularly preferably 10 to 40% by weight. Capped are multifunctional as crosslinkers Isocyanates or mixtures of different capped, multi-functional Suitable isocyanates.
- crosslinkers are derived from e.g. 1,6-hexamethylene diisocyanate, Naphthalene diisocyanate and triphenylmethane triisocyanate as well as the trimers of 1,6-hexamethylene diisocyanate, isophorone diisocyanate and tolylene diisocyanate are preferred Toluene diisocyanate, 4,4'-diphenylmethane diisocyanate, isophorone diisocyanate and the trimer of 1,6-hexamethylene diisocyanate.
- aliphatic alcohols e.g. methanol, ethanol, n-propanol, iso-propanol, n-butanol, iso-butanol or sec-butanol.
- Monoethers of aliphatic are also suitable Diols such as ethylene glycol monopropyl ether and ethylene glycol monobutyl ether.
- Secondary amines are also preferred short-chain aliphatic amines such as dimethyl, diethyl, Dipropyl or dibutylamine, or alkanolamines, preferred tertiary alkanolamines such as tri (n-propanol) amine or Tri (iso-propanol) amine or mixtures thereof.
- the Polyvalent isocyanates are used with the capping compounds implemented in such quantities in a manner known per se, that on average all isocyanate groups per molecule if possible be capped.
- Component C is at least partially in water more soluble Complex of iron with aromatic carbonyl or Hydroxyl compounds. These can be implemented other iron salts can be produced.
- Component C is used in catalytically effective amounts. Preferred amounts are 0.002 to 0.5, especially preferably from 0.01 to 0.3% by weight, based on the total weight of components A and B.
- the catalytic activity of iron compound C can be determined by Additives D can be further increased.
- Addition D can be cyclic nitrogen-based compounds. Particularly advantageous are imidazoles or benzimidazoles, of which 1,2-Dimethylimidazole is particularly preferred.
- the amount these additives can range from 5 to 90% by weight, preferably from 10 to 80 wt .-% based on the total weight of C and D.
- Components C and D may be in bulk, preferably but can be used in a solvent.
- a solvent come polar compounds such as acetone, methyl tert-butyl ketone and methyl tert-amyl ketone and multifunctional Alcohols in question like polyethylene glycol with a medium Molecular weight from 200 to 10,000. Mixtures of these solvents are also suitable.
- the solvent is advantageously used in amounts of 50 to 95% by weight based on the total weight of component C, D and solvents are used, preferably 70 to 90% by weight.
- a catalyst system which is characterized by Reaction of iron acetylacetonate with salicylaldehyde in one Solvent prepared in the presence of 1,2-dimethylimidazole becomes.
- the base resin A is dispersible in water in the case of Basic resins bearing amino groups according to partial or complete neutralization.
- Mineral acids are used for neutralization such as phosphoric acid and preferably carboxylic acids such as Formic acid, acetic acid, propionic acid and lactic acid are suitable. It is advantageous to base resin before neutralization Mix A and crosslinker B intimately. Such mixtures contain 50 to 95% by weight of A and 5 to 50% by weight of B.
- component C can also be added separately and possibly other additives D to the dispersed resin system.
- the dispersions can be mixed with water to a desired level Solids content can be diluted. To be as stable as possible To get dispersion, the dispersed particles should have an average particle size of 10-200 nm.
- Binder systems other binders, pigments, as well as usual in electrocoating Auxiliaries and additives such as fillers, corrosion inhibitors, Dispersing agents, defoamers and / or solvents be added.
- the electrocoating is carried out in a manner known per se Wise.
- the binders according to the invention have a cathodic effect Deposition of high corrosion protection on metal parts and remain elastic. The coatings harden quickly. The properties can be achieved even if the coatings contain little or no lead.
- the basic resin had a solids content of 70% and an amine number of 51 mg / g, the number of groups that can be protonated with acid and the hydroxyl group was 15 on average.
- the amidamine was reacted by reacting 290 g (2.5 mol) Hexamethylenediamine, 218 g (0.38 mol) dimer fatty acid and 70 g (0.25 mol) linseed oil fatty acid in 31 g xylene at 190 ° C produced by distilling off the water of reaction. After dilution with 92 g xylene and addition of 7 g (0.01 mol) hexamethylenediamine was the amine number 350 mg / g.
- polyethylene glycol with an average molecular weight M w of 6500 and 48 g of methyl isoamyl ketone were 24 g (0.067 mol) of iron (III) acetylacetonate, 57.7 g (0.6 mol) of 1,2-dimethyl-imidazole and 9.6 g (0.08 mol) of salicylaldehyde heated to 100 ° C until a color change to dark red occurred (approx. 5 h).
- binder A and crosslinker B a dispersion prepared without components C and D.
- the grinding resin was obtained by reacting 805 g diglycidyl ether based on bisphenol A and epichlorohydrin (epoxide equivalent weight 188), 379 g polytetrahydrofuran diglycidyl ether (epoxide equivalent weight 415), 205 g (0.9 mol) bisphenol A, 118 g (0.45 mol) 4- Dodecylphenol, 99 g (0.45 mol) 4-nonylphenol, 42.6 propylene glycol monophenyl ether and 0.5 g triphenylphosphine at 130 ° C. When an epoxy equivalent weight of 475 was reached, 90 g of propylene glycol monomethyl ether was added.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Paints Or Removers (AREA)
- Polyurethanes Or Polyureas (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Description
- einem Grundharz A, welches primäre und/oder sekundäre Aminogruppen oder kationische quartäre Gruppen sowie gewünschtenfalls Hydroxyl- oder Thiolgruppen trägt,
- einer Vernetzungskomponente B, die pro Molekül mindestens zwei verkappte Isocyanatgruppen trägt, und
- einem in Wasser mindestens teilweise löslichen Komplex des Eisens mit aromatischen carbonyl- oder Hydroxylverbindungen C als Katalysator für die thermische Vernetzung der Komponenten A und B sowie
- gewünschtenfalls einem die katalytische Aktivität von C erhöhenden Zusatz D.
- RI:
- reverse impact, Schlagtiefung (nach ASTM D 2794) Bestimmung mit einem mandrel impact tester
DISPERSIONEN | ÜBERZÜGE | ||||||
Katalysator | [g] | Eisen [ppm] | 1,2-Dimethylimidazol [ppm] | mittlere Teilchengröße [nm] | Acetontest Einbrenntemperatur 150°C | RI [Nm] Einbrenntemperatur 160°C | |
D1 | K1 | 8 | 13 | 200 | 140 | 1-2 | 15,8 |
D2 | K1 | 16 | 26 | 400 | 120 | 0 | 15,8 |
D3 | K1 | 40 | 65 | 1000 | 90 | 0 | 15,8 |
D4 | K1 | 80 | 130 | 2000 | 110 | 0 | 18,8 |
D5 | K1 | 160 | 260 | 5000 | 150 | 0 | 18,8 |
D6 | K2 | 40 | 130 | - | 30 | 0 | 15,8 |
D7 | K3 | 40 | 200 | 2000 | 110 | 0 | 15,8 |
Vergleich | - | - | - | - | 140 | 4 | 9,1 |
Claims (8)
- Für die Elektrotauchlackierung verwendbare wäßrige Dispersionen, enthaltend ein Bindemittelssystem auseinem Grundharz A, welches primäre und/oder sekundäre Aminogruppen oder kationische quartäre Gruppen sowie gegebenenfalls Hydroxyl- oder Thiolgruppen trägteiner Vernetzungkomponente B, die pro Molekül mindestens zwei verkappte Isocyanatgruppen trägt undeinem in Wasser mindestens teilweise löslichen, Komplex des Eisens mit aromatischen Carbonyl- oder Hydroxylverbindungen als Katalysatorkomponente C für die thermische Vernetzung der Komponenten A und B sowie
gegebenenfalls einem die katalytische Aktivität von C erhöhenden Zusutz D. - Dispersionen nach Anspruch 1, dadurch gekennzeichnet, daß das Grundharz Aa1) ein Polyurethanharza2) ein Epoxidharz
- Dispersionen nach Anspruch 2, dadurch gekennzeichnet, daß die Polyurethanharze a1) und die Epoxidharze a2) tertiäre Aminogruppen tragen, die im Falle der Epoxidharze a2) Alkyl- und/oder Alkanolreste mit jeweils 1 bis 20 Kohlenstoffatomen enthalten.
- Dispersionen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Komponente D eine cyclische stickstoffbasische Verbindung ist.
- Dispersionen nach Anspruch 4, dadurch gekennzeichnet, daß die stickstoffbasische Verbindung ein Imidazol oder ein Benzimidazol ist.
- Verfahren zur Herstellung fester Überzüge auf elektrisch leitfähigen Materialien nach der Methode der kathodischen Elektrotauchlackierung, dadurch gekennzeichnet, daß man hierzu die Dispersionen gemäß einem der Ansprüche 1 bis 5 sowie gegebenenfalls weitere hierfür übliche Zusatzstoffe verwendet und die erhaltenen Überzüge bei 100 bis 200°C vernetzt.
- Verwendung der wäßrigen Dispersionen gemäß einem der Ansprüche 1 bis 5 für die Ellektrotauchlackierung.
- Mittels kathodischer Elektrotauchlackierung beschichtete Gegenstände, erhältlich nach dem Verfahren gemäß Anspruch 6.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4208056A DE4208056A1 (de) | 1992-03-13 | 1992-03-13 | Bindemittel fuer die elektrotauchlackierung |
DE4208056 | 1992-03-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0560190A2 EP0560190A2 (de) | 1993-09-15 |
EP0560190A3 EP0560190A3 (de) | 1994-01-26 |
EP0560190B1 true EP0560190B1 (de) | 2000-08-16 |
Family
ID=6453996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93103367A Expired - Lifetime EP0560190B1 (de) | 1992-03-13 | 1993-03-03 | Bindemittel für die Elektrotauchlackierung |
Country Status (8)
Country | Link |
---|---|
US (1) | US5401823A (de) |
EP (1) | EP0560190B1 (de) |
JP (1) | JPH069745A (de) |
AT (1) | ATE195539T1 (de) |
BR (1) | BR9301148A (de) |
CA (1) | CA2090829A1 (de) |
DE (2) | DE4208056A1 (de) |
ES (1) | ES2150923T3 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4409306A1 (de) * | 1994-03-18 | 1995-09-21 | Basf Ag | Verfahren zur Modifizierung von Metalloberflächen |
DE19602350B4 (de) * | 1996-01-24 | 2004-11-11 | Institut Für Polymerforschung Dresden E.V. | Wässriges Beschichtungsmittel für Verstärkungsfasern für den Einsatz in Epoxidharzmatrices und deren Verwendung |
US5804051A (en) * | 1996-08-29 | 1998-09-08 | Ppg Industries, Inc. | Electrodepositable coating compositions containing hydroxamic acid and derivatives thereof, and their use in a method of electrodeposition |
JP2004515558A (ja) | 1999-03-26 | 2004-05-27 | エー. ラポイント,デイビッド | 耐摩耗コーティング組成物、それらの製造方法及びそれにより被覆された物品 |
CN101384636B (zh) * | 2006-02-21 | 2013-02-13 | 三井化学株式会社 | 聚硫氨酯类光学材料用聚合性组合物 |
EP2963073A1 (de) * | 2014-07-01 | 2016-01-06 | BASF Coatings GmbH | Reaktionsprodukte und wässrige Basislacke enthaltend die Reaktionsprodukte |
CN113462337B (zh) * | 2021-07-09 | 2022-08-16 | 可慧(河南)新材料科技有限公司 | 一种注浆型高分子粘结剂裂缝修补胶 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4293398A (en) * | 1979-02-01 | 1981-10-06 | Ppg Industries, Inc. | Process for cathodically electrodepositing polymers having tertiary amine oxide groups |
DE3118418A1 (de) * | 1981-05-09 | 1982-11-25 | Basf Ag, 6700 Ludwigshafen | Waessriges kationisches lacksystem und seine verwendung |
US4435559A (en) * | 1982-08-18 | 1984-03-06 | Ppg Industries, Inc. | β-Hydroxy urethane low temperature curing agents |
US4452681A (en) * | 1983-02-10 | 1984-06-05 | Ppg Industries, Inc. | Method of electrodeposition of coating compositions containing novel urethane curing agents |
JPH0726080B2 (ja) * | 1987-11-30 | 1995-03-22 | サンスター技研株式会社 | 高防錆性付与構造用接着剤 |
DE3938203A1 (de) * | 1989-11-17 | 1991-05-23 | Basf Ag | Katalysatorloesung fuer die polyurethanbildung |
JPH0418460A (ja) * | 1990-05-11 | 1992-01-22 | Kansai Paint Co Ltd | カチオン電着塗料用樹脂組成物 |
US5074979B1 (en) * | 1990-06-20 | 1995-02-28 | Ppg Industries Inc | Cationic resin containing blocked isocyanate groups suitable for use in electrodeposition |
-
1992
- 1992-03-13 DE DE4208056A patent/DE4208056A1/de not_active Withdrawn
-
1993
- 1993-02-26 JP JP5038206A patent/JPH069745A/ja active Pending
- 1993-03-02 CA CA002090829A patent/CA2090829A1/en not_active Abandoned
- 1993-03-03 AT AT93103367T patent/ATE195539T1/de not_active IP Right Cessation
- 1993-03-03 ES ES93103367T patent/ES2150923T3/es not_active Expired - Lifetime
- 1993-03-03 DE DE59310086T patent/DE59310086D1/de not_active Expired - Lifetime
- 1993-03-03 EP EP93103367A patent/EP0560190B1/de not_active Expired - Lifetime
- 1993-03-08 US US08/027,841 patent/US5401823A/en not_active Expired - Lifetime
- 1993-03-11 BR BR9301148A patent/BR9301148A/pt not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0560190A2 (de) | 1993-09-15 |
BR9301148A (pt) | 1993-09-21 |
DE59310086D1 (de) | 2000-09-21 |
US5401823A (en) | 1995-03-28 |
EP0560190A3 (de) | 1994-01-26 |
ATE195539T1 (de) | 2000-09-15 |
JPH069745A (ja) | 1994-01-18 |
CA2090829A1 (en) | 1993-09-14 |
ES2150923T3 (es) | 2000-12-16 |
DE4208056A1 (de) | 1993-09-16 |
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